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Ventiiating Cars and Buildings.

N0.162,616, PatentedApril27,l875.

INVENTOR desired number of JOHNSON BRIGGS, OF TORONTO, CANADA, ASSIGNOR OF ONE-HALF HI S RIGHT T0 WILLIAM STANBURY' FINGH, OF SAME PLACE.

iWiPRQt'liitir'Zbii lhl VENTELATING CAR$ AND BUl jLDlNGS.

Specification forming part of Letters Patent No. Htififidfi,

February 1,1873;

To all whom it may concave:

Be it known that I, JOBNSON Heroes, of the city of Toronto, and province of Ontario, Canada, have in vented certain new andnsei'ul Improvements in Ventilating Cars and Buildings, of which the following is a specification The invention relates to a system for ventilating railroad-cars, buildings, &c. ,and it consists in the employment of a trunk-pipe, placed horizontally and running the full length of a railwayfcar, inside ferred, with protruding funnel-shaped ends to act as air-catches, and connecting to such trunk-pipe a series of branch tubes leading hav i esidssnf th "statute outlets furnished with suitable regis tere for shutting 0d and regulating the introduction of fresh air, the object of the in-' vention beingto supply the occupants with pure air, and exclude dust and cinders from the car.

In the accompanying drawing, Figure 1 is a longitudinal vertical section, and part in elevation, of myimproved system appliedto a passenger-car. Fig. 2 is an end view of the same.

A is the body of an ordinary railwaycarriage 'of the usual construction. B is the main air-trunk tube'passing longitudinally through the car, either inside or outside, and projecting a suitable distance beyond both ends ofthacar. C O are a series of any branch pipes, connecting with the tube B and terminating between the seats or other suitable locality, the-outlet being provided with registered) of the usual construction. Preferably the trunk-tubes B are arranged near the ceiling at each longitudinal side-of the car, and the branch pipes-lead therefrom vertically down the'sides of thecars between the windows. The ends of the trunk-tube B are funnel-shapedto form airoatches ll-"to convey the air to the tube, and

near the ends of the tube are inserted dampers- E. The" mouths of the funnels are furnished with a woven-wire covering, or with a coverng of any textile fabric having open meshes,,to exclude dust and einders. If desired, the ends of the tube Bmay be curved, so as to give in the county of York or outside, as may be pre-' cars to between each...

dated April 27, 1875; application filed elevation to the aircatehes or funnels above the top of the ear.

By means of my invention the occupants of the car can, by opening the registers, obtain a full supply of fresh air without opening the xvindows, and the ventilation .of the ear 4 can be easily regulated, without the introduction of dust, cinders, or ashes. The

dampers at the rear end of .the car should be closed when it is desired to feed the car with] and any degree nished with registers the purpose of conducting ofi the cold and vitiated air from "near thefloor, -so that its place may be supplied by pure and warm air settling down from above. Thevertical trunlzs G G may communicate through a branch, I,

furnished with adampernl Whenthis damper is open the vitiated air carried up through will. be conducted through 7 both trunks G G a horizontal pipe, J, carried through the dome or monitor roof of the-earjand discharging at the rear end. By opening the damper'k the vitiated air will be lar arrangement is provided at each side i the car at both ends, one-half of the car being shown in section in'Fig. 2, and the other hall in elevation, so that the vertical trunks and their accessories undue sideare hidden. L L represent trap-doors or slides applied to the lower ends of the'branch pipes O for the purpose of removing any accumulation of dust or cinders. M M represent doors or slides applied at or near the extremities of the main trunk B for the same purpose.

My invention is also applicable to buildings and apartments, and the cabins, berths, &c., of steamboats. trunk-tube may be placed either vertically or horizontally through the building, and branch pipes lead therefrom to the roomszto be venti lated.

open at the for--= so as to ventilate each berth pr' couch. G G! represent vertical trunks fur- 5 H, and employed for permitted to pass directly upward through the vertical stack K. A simii- As applied tobuildings, the.

I claim as my invention- 850., in the trimmer and for the, purpbse set The trunk-tubes B provided with dampers forth, 7 E, and aincatches F, furnished with a co'v JOHNSON BRIGGS ering of metallic or textile mesh-work, and

connecting with a series of branch pipes, Witnesses:

0', having suit-able registers D, the whole 7 J'No. WINCHESTER, arranged --"alnd applied to a car," building, J. W. EVANS. 

